Acetylene-gas burner.



No. 629,061. Patented July l8, I899. a. & .1. w. BRAY.

ACETYLENE GAS BURNER.

(Application filed Oct. 90, 1898.)

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; r v ."STATES' PATENT OFFICE enonen EBAY-AND J-orIN W LLiAM BRAY, or LEEDS, ENGLAND.

ACE'l'YLENE-GA S BURNER.

SPECIFICATION forming art of Letters Patent No. 629,061, dated July 18, 1 see. I Application filed October 20, 1898. Serial No. 694,101. (No model.)

To a whom it may concern:

Be it known that we, GEORGE BRAY and J OHN WILLIAM BRAY, subjects of the Queen of Great Britain and Ireland, residing at Leeds, in the county of York, England, have invented certain new and useful Improvements in Burners for Acetylene Gas; and we do hereby declare the following to be a clear and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain improvements in burners for acetylene gas, and has for its object the obviating of defects in burners as hitherto constructed.

The principal defect common to every burner hitherto constructed for acetylene gas is more or less the liability to deposit carbon on the burner at the point of ignition. As a consequence the carbon thus deposited must be removed frequently or the burners become useless. V V

The type of acetylene-burner upon which our burner is an improvement is the Bunsen or air burner, which will be hereinafter referred to as the air-burner. It is made sometimes for a single jet of flame and sometimes for two or more separate jets which form one flat flame. There are separate orifices for each jet of gas and suitable air-inlets of the form of slits or circular or other shaped holes, so that there passes along with the gas to the point of ignition a more or less quantity of atmospheric air after the manner of the well-known Bunsen burner. These air- -inlets may be at any angle to the gas-orifice and in any suitable number.

- Figure 1 is a sectional view of a single-jet burner of ordinary form. Fig. 2 is a sectional view similar to Fig. l with our improvements added. Fig. 3 is a plan view of Fig. 2, slightly enlarged. Fig. 4 is a plan view, also slightly enlarged, of a section on line at 4 of Fig.2. Fig. 5 is a side view,'partly,in section, of a flat-flame burner, which is made by using two or more separate jets. Fig. 6 is a side view of a union-jetburner. Fig. 7 is a sectional view of the burner shown in Fig. 6.

In the drawings hereto appended, Fig. 1 shows at A an ordinary form of single jet air-burner as at present made for acetylene gas. a is the central hole through which the gas passes. l) b are the side passages through which the air is drawn by the current of gas passing through the central hole. In such air-burner the liability to deposit carbon is greatest when the gas is'turned down, as is frequently done for economy, to a very low pressureat the point of ignition, yielding a small flame. Under these conditions the carbon deposited within a short time is often sufthe jet of flame produced by such air-burner.

Hence our improved burner consists, as it were, of two stories. This arrangement is shown in section by Fig. 2, which shows the form in which we have found it to answer According to our invention we add best, openings being formed from the exterior Iorifice fin the open superstructure through which the jet of flame passes from the airburner should be large enough not to discon:

.nect at any pressure the jet of flame from the air-burner and not too large to prevent it from acting upon the jet of flame, so as to prevent the injurious depositing or retention of carbon under conditions referred to herein.

When our improved burner is in use, the air-burner conveys the gas and air to the point where they are ignited and form the flame at the point g, (shown in Figs. 1 and 5,) and the opensuperstructure 0 deals with the flame so produced and prevents the injurious depositing of carbon on the air-burner below, particularly when the gas is turned down to produce a small flame, thus maintaining the airburner in a state of efficiency. If, as may happen, for instance, while the flame is low, there is any material deposit of carbon on the open superstructure, such carbon disappears when the gas is turned up to its ordinary pres sure for lighting purposes. superstructure protects the air-burner from the injurious depositing of carbon, particularly when the jet of flame is turned low, and the jet of flame from the air-burner cleans and maintains clean the open superstructure when the gas is turned up to its ordinary pressure for lighting purposes.

Thus the open .union' of two jets of gas.

To prevent the small gasorilices being stopped up with dust pa'rticles,we place a layer or layers of muslin m, (as in our well-known special and regulator burners) suitably fixed in the case or socket.

Although in-ou r improved b urners we make the open superstructure and the bu rnerin one piece and of any suitable material, it maybe made in one, two, or more pieces.

Fig. 6 represents a union-jet burner with inlets at b, through which air is drawn by the current of gas, and openings'd into the open superstri'lcture. The burner is secured in a metal case or socket e in such a way as to form a durableand suitable connection with any fittings. Fig. 7 represents a section through the said burner, showing the gas-passages (r. Fig. 8 shows a form of open superstructure c which maybe fitted to the ordinary burner shown by. Fig. 1; and Fig. 9 representsa section through the open superstructure 0, de-

tached from the burner.

The open superstructure 0 may be construct. ed as shown by Figs. 10 and 11, the latter representing a plan of the open superstructure having an open orifice f through'the same and an open air-space d between the-open superstructure and air-burner.

What we claim as our invention is An acetylene-burner consisting of a lower part having a gas-passage and air-ports leading to the gas-passage and an upper part placed above and around the point of ignition of the lower part,and having air-h oles through its walls, substantially as described.

In witness whereof we have hereunto set our hands in the presence of two subscribing witnesses.

GEORGE BRAY. JOHN \VILLIAM BRAY.

\Vitnesses:

HARRY MUDD, JOHN GILL. 

